Blood glucose measuring device

Abstract

To minimize the additional work required from the user and to allow the user to adjust the timing of activation according to their needs. [Solution] The blood glucose measuring device includes a body attachment unit that is attached to the body to measure biological information, and an applicator that is operated to eject the body attachment unit, which is coupled inside, to the outside. When the body attachment unit is ejected to the outside by the applicator, the lower end of the body attachment unit protrudes downward from the lower end of the applicator.

Description

Technical Field

[0001] The present invention relates to a blood glucose measuring device. More specifically, by manufacturing the body-attached unit in a state where it is assembled in an applicator, the user's additional operation for attaching the body-attached unit to the body is minimized, and the body-attached unit can be attached to the body simply by operating the applicator. In particular, by equipping the body-attached unit with a wireless communication chip to enable communication with an external terminal, it can be used simply and conveniently without the additional operation of connecting a separate transmitter, and maintenance and management can be more easily performed. By making it possible to start operation by the user's operation after the body-attached unit is attached to the body, the start time of operation can be adjusted at an appropriate time according to the user's needs, and it relates to a blood glucose measuring device that can start operation in a stabilized state and enable more accurate blood glucose measurement.

Background Art

[0002] A separate applicator is used for this purpose. Diabetes is a chronic disease that occurs frequently in modern people, reaching more than 2 million people in the domestic case, which corresponds to 5% of the total population.

[0003] Diabetes is caused by various factors such as obesity, stress, incorrect eating habits, and congenital inheritance, resulting in an absolute or relative deficiency of insulin produced by the pancreas, and the inability to immediately balance the sugar in the blood. As a result, the sugar component in the blood becomes absolutely high and the disease develops.

[0004] Normally, a certain concentration of glucose is contained in the blood, and tissue cells obtain energy from here.

[0005] However, if glucose levels increase excessively, it cannot be properly stored in the liver, muscles, or fat cells and instead accumulates in the blood. This causes diabetic patients to maintain much higher blood sugar levels than healthy individuals. The excess glucose passes directly through the tissues and is excreted in urine, resulting in a deficiency of the sugar absolutely necessary for each tissue in the body, leading to abnormalities in those tissues.

[0006] Diabetes is characterized by having almost no noticeable symptoms in its early stages. However, as the disease progresses, specific symptoms such as excessive thirst, increased appetite, frequent urination, weight loss, general fatigue, skin rashes, and persistent wounds on the hands and feet may appear. If the disease progresses even further, complications such as vision impairment, hypertension, kidney disease, stroke, periodontal disease, muscle spasms and neuralgia, and gangrene may develop.

[0007] To diagnose diabetes and manage it to prevent it from progressing to complications, systematic blood glucose monitoring and treatment must be carried out in parallel.

[0008] Many medical device manufacturers offer a variety of blood glucose meters for home use to measure blood glucose levels in people with diabetes and those who have not developed diabetes but have higher-than-normal levels of sugar in their blood.

[0009] Blood glucose meters come in two types: one where the user draws blood from their fingertip and measures blood glucose levels one at a time, and another where the device is attached to the user's stomach or arm and measures blood glucose levels continuously.

[0010] In diabetic patients, blood sugar levels generally fluctuate between high and low, but the most critical situation is often a state of hypoglycemia, which can lead to loss of consciousness or, if hypoglycemia persists for a long time without glucose supply, can be fatal. Therefore, immediate detection of hypoglycemia is crucial for diabetic patients, but blood glucose meters that measure blood glucose intermittently have limitations in accurately detecting it.

[0011] Recently, to overcome these limitations, continuous glucose monitoring systems (CGMS) have been developed that are inserted into the human body to measure blood glucose levels at intervals of several minutes. Through these systems, it is possible to easily manage diabetic patients and respond to emergency situations.

[0012] Furthermore, blood glucose meters require diabetic patients to prick their sensitive fingertips with a needle to collect blood, which inevitably induces discomfort and aversion during the blood collection process. To minimize this discomfort and aversion, research and development are underway on continuous glucose monitoring systems that continuously measure blood glucose after inserting a needle-shaped sensor into areas with relatively less pain, such as the abdomen or arm. Moreover, research and development has also been actively progressing on non-invasive glucose monitoring systems that measure blood glucose without collecting blood.

[0013] For the past 40 years or so, research has been ongoing on various methods of non-invasive blood glucose monitoring, including optical, electrical, and breath-based methods, to measure blood glucose without taking blood samples. Cygnus (Redwoo City, Ca, USA) developed and marketed the Glucowatch G2 Biographer, a wristwatch-type device utilizing reverse iontophoresis, but sales were discontinued in 2007 due to issues such as skin irritation, calibration problems, malfunctions due to sweating, and inability to accurately detect hypoglycemia compared to hyperglycemia. To date, many non-blood glucose monitoring technologies have been reported, but their accuracy is often lacking, making them impractical for everyday use.

[0014] A continuous glucose monitoring device consists of a sensor module that attaches to the skin of the body to extract bodily fluids and measure glucose, a transmitter that sends the glucose values ​​measured by the sensor module to a terminal device, and a terminal device that outputs the transmitted glucose values. The sensor module is equipped with a sensor probe that is shaped like a needle to be inserted into the subcutaneous fat to extract interstitial fluid, and a separate applicator is used to attach the sensor module to the body.

[0015] Such continuous glucose monitoring devices are manufactured in a wide variety of forms by different manufacturers, and their usage methods also vary. However, most continuous glucose monitoring devices are manufactured and distributed using a method in which a single-use sensor module is attached to the body via an applicator. Users must perform several steps to activate the applicator for attaching the single-use sensor module to the body, and then perform various subsequent procedures, such as directly removing the needle after attaching the sensor module to the body.

[0016] For example, the packaging of a single-use sensor module must be removed and accurately inserted into the applicator, the applicator must be activated with the sensor module inserted to insert the sensor module into the skin, and after insertion, a separate instrument must be used to directly remove the needle of the sensor module from the skin. Additionally, a separate transmitter must be attached to the sensor module to send the blood glucose measurement results to the user terminal.

[0017] Therefore, there is a problem in that the process of measuring blood glucose using a continuous glucose monitor is very cumbersome and inconvenient. In addition, there is a problem in that the user does not initiate the operation of the sensor module and transmitter, which can lead to a decrease in the accuracy of blood glucose measurement results and a reduction in the lifespan of the device. [Overview of the Initiative] [Problems that the invention aims to solve]

[0018] The present invention was made to solve the problems of the prior art. The objective of the present invention is to provide a continuous blood glucose monitoring device that minimizes the additional work required of the user to attach the body-attachment unit to the body by manufacturing the body-attachment unit assembled within the applicator, allowing the body-attachment unit to be attached to the body simply by operating the applicator. In particular, by equipping the body-attachment unit with a wireless communication chip to enable communication with an external terminal, the device can be used simply and conveniently without the additional work of connecting a separate transmitter, and maintenance can be performed more easily.

[0019] Another object of the present invention is to provide a continuous blood glucose monitoring device that allows for more accurate blood glucose measurement by enabling the user to adjust the start time to an appropriate point according to the user's needs, and by enabling the device to start operating in a stable state after the body attachment unit is attached to the body and is activated by the user's operation. [Means for solving the problem]

[0020] The present invention provides a continuous blood glucose monitoring device comprising a body-attachment unit formed to be insertable and attachable to the body in order to extract bodily fluids and periodically measure blood glucose, and an applicator formed to be internally coupled and fixed to the body-attachment unit, which is operated by the user to eject the body-attachment unit to the outside so that it can be inserted and attached to the body, the body-attachment unit being assembled and manufactured as a single unit product with the body-attachment unit inserted inside the applicator, and the body-attachment unit being equipped with a sensor member with one end inserted into the body and a wireless communication chip that can communicate wirelessly with a separate external terminal device.

[0021] In this case, the body-attached unit can be configured so that the sensor member and the wireless communication chip are activated via a separate switch mechanism operated by the user.

[0022] Furthermore, the applicator may include a main case on one side with a pressure button attached to it so as to be operated by the user to apply pressure, a plunger body which is coupled and fixed to a first position inside the main case and is released from the coupling and fixing at the first position by operation of the pressure button and moves linearly to a second position which is in the direction of external discharge, and a plunger elastic spring which applies an elastic force to the plunger body so as to move linearly from the first position to the second position, and the body attachment unit may be coupled to one end of the plunger body and move together with the plunger body from the first position to the second position.

[0023] Furthermore, a shooting plate that moves when the pressure button is pressed is coupled to the inside of the main case, and the plunger body is coupled and fixed by engaging with the shooting plate in the first position, and the engagement is released and the coupling is released by the movement of the shooting plate.

[0024] Furthermore, the main case includes an outer case on which the pressure button is attached to one side, and an inner case that is coupled to the inside of the outer case and formed to guide the linear movement path of the plunger body, and the shooting plate is securely supported by the inner case and can move.

[0025] Furthermore, the external case has a locking projection formed in the area where the pressure button is attached, and the pressure button can be mounted so as to be slidable along a certain distance along the surface of the external case so as to be able to switch between a safety mode in which it engages with the locking projection to prevent pressure movement by the user's pressurization operation, and a pressurization standby mode in which it is released from the locking projection to allow pressure movement by the user's pressurization operation.

[0026] In addition, the body-attached unit houses the sensor member inside in such a way that one end of the sensor member protrudes externally, and also houses the wireless communication chip inside. It is formed as a housing that is externally discharged by the applicator and whose bottom surface adheres to the body. Further, it includes a needle portion that is detachably coupled to the housing and surrounds one end of the sensor member so that when the housing moves externally and discharges, one end of the sensor member is inserted into the body, and the sensor member and the needle portion are inserted into the body together. The applicator may further include needle withdrawal means for moving the needle portion toward the first position and withdrawing and removing it from the body when the plunger body has completed moving from the first position to the second position.

[0027] In addition, a separate protective cap is detachably coupled to the applicator so that external exposure is blocked when the body-attached unit is inserted inside the applicator. An adhesive tape and a release paper are attached to the body contact surface of the body-attached unit so that the body-attached unit adheres to the body. The release paper of the adhesive tape can be formed to be separated and removed from the adhesive tape together with the protective cap during the process of separating the protective cap from the applicator.

[0028] In addition, the main case can be equipped with return prevention means for preventing the plunger body from returning to the first position after the plunger body has moved to the second position.

[0029] In addition, the return prevention means includes an engagement body formed on one side of the plunger body, and a return prevention hook formed on the inner case so that when the plunger body has completed moving from the first position to the second position, it engages and couples with the engagement body to prevent the return movement of the plunger body. The return prevention hook can be formed so that an elastic restoring force acts during the process of engaging with the engagement body and it engages.

[0030] Furthermore, the plunger body can be formed such that when it moves from the first position to the second position by operating the pressure button, its end protrudes further than the end of the main case.

[0031] Furthermore, the body attachment unit can be formed such that, when moved to the second position together with the plunger body, its end protrudes further than the end of the main case. [Effects of the Invention]

[0032] According to the present invention, by manufacturing the body attachment unit assembled within the applicator, the additional work required from the user to attach the body attachment unit to the body is minimized, and the body attachment unit can be attached to the body simply by operating the applicator. In particular, by equipping the body attachment unit with a wireless communication chip and enabling communication with an external terminal, it can be used simply and conveniently without the additional work of connecting a separate transmitter, and maintenance can be carried out more easily.

[0033] Furthermore, by enabling the user to initiate operation after the body-attached unit is attached to the body, the activation time can be adjusted to an appropriate point according to the user's needs, and it is possible to start operation in a stable state, resulting in more accurate blood glucose measurement. [Brief explanation of the drawing]

[0034] [Figure 1] Figure 1 is a schematic perspective view showing the external shape of a continuous blood glucose monitoring device according to one embodiment of the present invention. [Figure 2] Figure 2 is a schematic perspective view showing the external shape of a body-attachment unit according to one embodiment of the present invention. [Figure 3] Figure 3 is an exploded perspective view schematically showing the configuration of a continuous blood glucose monitoring device according to one embodiment of the present invention. [Figure 4] Figure 4 is a cross-sectional view taken along the line "BB" in Figure 1. [Figure 5] Figure 5 is a cross-sectional view taken along the line "AA" in Figure 1. [Figure 6] Figure 6 is a schematic perspective view showing the configuration of a protective cap according to one embodiment of the present invention. [Figure 7] Figures 7 and 8 are diagrams illustrating the process of separating and removing the release paper along with a protective cap according to one embodiment of the present invention. [Figure 8] Figures 7 and 8 are diagrams illustrating the process of separating and removing the release paper along with a protective cap according to one embodiment of the present invention. [Figure 9] Figure 9 is a schematic perspective view showing the coupling structure of a pressure button according to one embodiment of the present invention. [Figure 10] Figures 10 and 11 are schematic diagrams showing a mode conversion structure for a pressure button according to one embodiment of the present invention. [Figure 11] Figures 10 and 11 are schematic diagrams showing a mode conversion structure for a pressure button according to one embodiment of the present invention. [Figure 12] Figure 12 is a schematic diagram showing the pressurized operation state of a pressurizing button according to one embodiment of the present invention. [Figure 13] Figures 13 and 14 are schematic perspective views showing the movement of the shooting plate due to the operation of a pressure button according to one embodiment of the present invention. [Figure 14] Figures 13 and 14 are schematic perspective views showing the movement of the shooting plate due to the operation of a pressure button according to one embodiment of the present invention. [Figure 15] Figures 15 and 16 are diagrams illustrating the separation structure of the applicator and body attachment unit according to one embodiment of the present invention. [Figure 16] Figures 15 and 16 are diagrams illustrating the separation structure of the applicator and body attachment unit according to one embodiment of the present invention. [Figure 17] Figures 17 to 19 are diagrams illustrating an applicator reuse prevention structure according to one embodiment of the present invention. [Figure 18]Figures 17 to 19 are diagrams illustrating an applicator reuse prevention structure according to one embodiment of the present invention. [Figure 19] Figures 17 to 19 are diagrams illustrating an applicator reuse prevention structure according to one embodiment of the present invention. [Figure 20] Figure 20 is a diagram illustrating the operating structure of a needle extraction mechanism according to one embodiment of the present invention. [Figure 21] Figures 21 to 25 are diagrams illustrating the usage of a continuous blood glucose monitoring device according to one embodiment of the present invention, step by step according to the operating procedure. [Figure 22] Figures 21 to 25 are diagrams illustrating the usage of a continuous blood glucose monitoring device according to one embodiment of the present invention, step by step according to the operating procedure. [Figure 23] Figures 21 to 25 are diagrams illustrating the usage of a continuous blood glucose monitoring device according to one embodiment of the present invention, step by step according to the operating procedure. [Figure 24] Figures 21 to 25 are diagrams illustrating the usage of a continuous blood glucose monitoring device according to one embodiment of the present invention, step by step according to the operating procedure. [Figure 25] Figures 21 to 25 are diagrams illustrating the usage of a continuous blood glucose monitoring device according to one embodiment of the present invention, step by step according to the operating procedure. [Figure 26] Figure 26 is a schematic perspective view showing the external shape of a body-attachment unit attached to a body according to one embodiment of the present invention. [Figure 27] Figure 27 is an exploded perspective view schematically showing the configuration of a body attachment unit according to one embodiment of the present invention. [Figure 28] Figure 28 is a cross-sectional view taken along the "CC" line in Figure 26. [Figure 29] Figure 29 is a cross-sectional view taken along the "DD" line in Figure 26. [Figure 30] Figure 30 is a schematic diagram showing the operating state of a pressurized operating module according to one embodiment of the present invention. [Figure 31] Figure 31 is a schematic perspective view showing the detailed configuration of a pressurized operating module according to one embodiment of the present invention. [Figure 32] Figure 32 is a schematic perspective view showing the detailed configuration of a sensor member according to one embodiment of the present invention. [Figure 33] Figure 33 is a conceptual diagram showing the pressurized operation state of a sensor member according to one embodiment of the present invention. [Figure 34] Figure 34 is a conceptual diagram showing the arrangement relationship between a sensor member and an electrical contact according to one embodiment of the present invention. [Figure 35] Figures 35 to 37 are conceptual diagrams illustrating various configurations of a contact coupling module according to one embodiment of the present invention. [Figure 36] Figures 35 to 37 are conceptual diagrams illustrating various configurations of a contact coupling module according to one embodiment of the present invention. [Figure 37] Figures 35 to 37 are conceptual diagrams illustrating various configurations of a contact coupling module according to one embodiment of the present invention. [Figure 38] Figures 38 and 39 are schematic diagrams illustrating the structure of a mode conversion locking member for a pressure button according to one embodiment of the present invention. [Figure 39] Figures 38 and 39 are schematic diagrams illustrating the structure of a mode conversion locking member for a pressure button according to one embodiment of the present invention. [Figure 40] Figures 40 and 41 are schematic diagrams illustrating the structure and operating state of a pressurized operating module according to the present invention and another embodiment. [Figure 41] Figures 40 and 41 are schematic diagrams illustrating the structure and operating state of a pressurized operating module according to the present invention and another embodiment. [Figure 42] Figure 42 is a schematic diagram showing the structure of a pressurized operating module according to the present invention and another embodiment. [Figure 43] Figure 43 is a schematic perspective view showing the detailed configuration of a sensor member according to the present invention and another embodiment. [Figure 44] Figure 44 is a perspective view illustrating the form of a sensor member with respect to pressure deformation according to one embodiment of the present invention. [Figure 45]Figure 45 is a diagram illustrating various modifications of the sensor member according to one embodiment of the present invention. [Figure 46] Figure 46 is a cross-sectional view taken along the "EE" line in Figure 45 to illustrate the electrode stacking structure of a sensor member according to one embodiment of the present invention. [Figure 47] Figures 47 and 48 are cross-sectional views taken along the "EE" line in Figure 45 to illustrate the electrode stacking structure of a sensor member according to the present invention and another embodiment. [Figure 48] Figures 47 and 48 are cross-sectional views taken along the "EE" line in Figure 45 to illustrate the electrode stacking structure of a sensor member according to the present invention and another embodiment. [Modes for carrying out the invention]

[0035] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, it should be noted that when assigning reference numerals to the components in each drawing, the same components will be given the same reference numerals as much as possible, even if they are shown in other drawings. Furthermore, in describing the present invention, if it is determined that a specific description of a related known configuration or function would obscure the gist of the present invention, such a detailed description will be omitted.

[0036] Figure 1 is a schematic perspective view showing the external shape of a continuous blood glucose monitoring device according to one embodiment of the present invention; Figure 2 is a schematic perspective view showing the external shape of a body attachment unit according to one embodiment of the present invention; Figure 3 is an exploded perspective view showing the configuration of a continuous blood glucose monitoring device according to one embodiment of the present invention; Figure 4 is a cross-sectional view taken along the "BB" line in Figure 1; and Figure 5 is a cross-sectional view taken along the "AA" line in Figure 1.

[0037] According to one embodiment of the present invention, the continuous blood glucose monitoring device has a body attachment unit 20 assembled inside the applicator 10 to create a single unit product, and has a very simple structure that minimizes the additional work required from the user when using the continuous blood glucose monitoring device.

[0038] The body-attachment unit 20 is designed to be attachable to the body so that it can extract bodily fluids and periodically measure blood glucose, and is also designed to send the blood glucose measurement results to an external device such as an external terminal (not shown). Such a body-attachment unit 20 has a sensor member 520 with one end inserted into the body and a wireless communication chip (see Figure 27) 540 arranged inside so that it can communicate wirelessly with an external terminal, and can be used without the need to connect a separate transmitter.

[0039] The applicator 10 is formed so that the body attachment unit 20 is attached and fixed inside, and is operated by the user to eject the body attachment unit 20 to the outside.

[0040] At this time, the body attachment unit 20 is assembled and manufactured with the applicator 10 inserted inside, and is configured to move in the direction of external discharge and attach to the body when the applicator 10 is operated by the user.

[0041] In other words, the sensor applicator assembly 1 according to one embodiment of the present invention is manufactured in such a way that the body attachment unit 20 is inserted into the applicator 10 during the manufacturing process, and the body attachment unit 20 adheres to the skin simply by operating the applicator 10. Since it is supplied to the user in this state, the user can attach the body attachment unit 20 to their skin simply by operating the applicator 10, without any additional work required to attach the body attachment unit 20 to their skin. In particular, the body attachment unit 20 is equipped with a separate wireless communication chip 540, eliminating the need to connect a separate transmitter, making it even more convenient to use.

[0042] Conventional continuous blood glucose monitoring devices require users to remove the packaging from a separately packaged body-contacting unit, accurately insert it into the applicator, and then activate the applicator to attach the unit to the skin. However, accurately inserting the body-contacting unit into the applicator is not only cumbersome and difficult, but also poses problems such as contamination of the body-contacting unit during this process, which can reduce the accuracy of blood glucose measurements, especially for children and the elderly.

[0043] In one embodiment of the present invention, the body-attachment unit 20 is manufactured and distributed with the applicator 10 already inserted during the manufacturing process. This eliminates the need for the user to expose the body-attachment unit 20 and insert it into the applicator 10. The body-attachment unit 20 can then be attached to the skin simply by operating the applicator 10, dramatically improving usability. In particular, it prevents contamination of the body-attachment unit 20 and improves the accuracy of blood glucose measurement.

[0044] Since the body attachment unit 20 is manufactured with the applicator 10 inserted in this manner, it is desirable that the body attachment unit 20 and applicator 10 be used for single-use purposes and cannot be reused. Due to this non-reusable structure, the applicator 10 according to one embodiment of the present invention is formed so that the body attachment unit 20 cannot be reinserted after it has been operated once to eject the body attachment unit 20 inserted inside to the outside.

[0045] In other words, the applicator 10 is formed in a form with one side open, and the body attachment unit 20 is configured to be discharged to the outside through the open side of the applicator 10. However, once the body attachment unit 20 inside the applicator 10 is discharged to the outside through the first operation of the applicator 10, it is possible to configure it so that the user cannot insert another body attachment unit 20 into the applicator 10 thereafter.

[0046] On the other hand, a separate protective cap 200 can be detachably attached to the applicator 10 so as to prevent external exposure when the body attachment unit 20 is inserted inside the applicator 10, and the user can operate the applicator 10 to attach the body attachment unit 20 to their body only after detaching the protective cap 200.

[0047] At this time, adhesive tape 560 is attached to the body contact surface of the body attachment unit 20 so that the body attachment unit 20 can adhere to the body, and release paper 561 is attached to the body contact surface of the adhesive tape 560 to protect the adhesive tape 560. The release paper 561 of the adhesive tape 560 can be formed so that it is separated and removed from the adhesive tape 560 in the process of separating the protective cap 200 from the applicator 10.

[0048] For example, the release paper 561 can be configured such that one side is adhered to the protective cap 200, so that when the user separates the protective cap 200 from the applicator 10, it will be separated and removed from the adhesive tape 560 together with the protective cap 200. As a result, when the user separates the protective cap 200, the release paper 561 of the adhesive tape 560 is separated and removed, and in this state the applicator 10 can be operated to attach the body attachment unit 20 to the body.

[0049] Furthermore, the applicator 10 can be configured to bind and fix the body attachment unit 20 when the body attachment unit 20 is inserted inside, and to release the binding and fixation to the body attachment unit 20 when the body attachment unit 20 is ejected and moved to the outside. Therefore, when the body attachment unit 20 is inserted and assembled inside the applicator 10, the body attachment unit 20 is maintained in a fixed state, and when the applicator 10 is operated to eject the body attachment unit 20 to the outside and attach it to the skin, the binding and fixation state between the applicator 10 and the body attachment unit 20 is released. In this state, if the applicator 10 is separated, it will separate from the body attachment unit 20, and only the body attachment unit 20 will remain attached to the skin.

[0050] On the other hand, a body-attached unit 20 according to one embodiment of the present invention can be configured so that the sensor member 520 and the wireless communication chip 540 are activated via a separate switch mechanism operated by the user. That is, after inserting and attaching the body-attached unit 20 to the body via the applicator 10, the user can activate the body-attached unit 20 via a switch mechanism provided on the body-attached unit 20, and from this activation point, the sensor member 520 and the wireless communication chip 540 will operate to measure the body's blood glucose and send the measurement results to an external terminal. At this time, the switch mechanism operated by the user can be configured in various ways, and a detailed explanation of such a switch mechanism and the body-attached unit 20 will be described later, mainly in Figures 26 to 37.

[0051] Furthermore, the body attachment unit 20 is formed by separating the upper housing 512 and the lower housing 511, with the sensor member 520 positioned inside the housing 510, and one end of the sensor member 520 protruding outward from the housing 510 so as to be inserted into and attached to the body. The sensor member 520 consists of a sensor probe portion 521 that is inserted into the body and a sensor body portion 522 that is positioned inside the housing 510, but the sensor probe portion 521 and the sensor body portion 522 are bent in a way that makes up one end and the other end of the sensor member 520, respectively.

[0052] At this time, a separate needle portion 550 can be detachably connected to the housing 510 so that the process of inserting the sensor member 520 into the body can be carried out smoothly. The needle portion 550 is configured to surround one end of the sensor member 520 and be inserted into the body together with the sensor member 520 so that one end of the sensor member 520 can be stably inserted into the body.

[0053] As shown in Figure 2, the needle portion 550 is detachably mounted in a direction that penetrates the housing 510 of the body attachment unit 20 vertically, and is formed in a manner that surrounds the outside of the sensor member 520, with a needle head 551 formed at its upper end. When the body attachment unit 20 is moved outward by the applicator 10, the needle portion 550 is inserted into the body before the sensor member 520, assisting in the stable insertion of the sensor member 520 into the skin. The needle portion 550 is connected to the needle extraction body 400 of the applicator 10 through the needle head 551, and is formed to be extracted and removed from the body by the needle extraction body 400 of the applicator 10 after the body attachment unit 20 has been inserted and attached to the body by the operation of the applicator 10.

[0054] Next, we will look in more detail at the detailed configuration of the applicator 10 according to one embodiment of the present invention.

[0055] An applicator 10 according to one embodiment of the present invention comprises a main case 100 on which a pressure button 110 is attached to one side to be pressurized by a user; a plunger body 300 which is coupled and fixed to a first position inside the main case 100 and released from the coupling and fixing at the first position by operation of the pressure button 110 and moves linearly to a second position which is the direction of external discharge; and a plunger elastic spring (S1) which applies an elastic force to the plunger body 300 so that the plunger body 300 moves linearly from the first position to the second position. The body attachment unit 20 is coupled to one end of the plunger body 300 and moves together with the plunger body 300 from the first position to the second position.

[0056] As mentioned above, a separate protective cap 200 is detachably attached to the lower end of the main case 100 to protect the internal body attachment unit 20.

[0057] The protective cap 200 can be configured to include an outer cover portion 201 formed to surround the outer circumferential surface of the applicator 10 in a manner that contacts it and is coupled to one end of the applicator 10, as shown in Figures 6 to 8; an extension portion 202 extending from one end of the outer cover portion 201 toward the inner center of the applicator 10; and an inner support portion 203 extending upward from the extension portion 202 to support the body contact surface of the body attachment unit 20 inserted into the inside of the applicator 10. In this case, a sensor protection portion 204 can be formed to locally protrude downward from the center of the inner support portion 203 so as to surround the sensor probe 521 and needle portion 550 that protrude downward from the body contact surface of the body attachment unit 20.

[0058] Therefore, the protective cap 200 not only prevents the body attachment unit 20 inserted inside the applicator 10 from being exposed to the outside, but also provides support for the body attachment unit 20, thereby improving the overall structural safety of the applicator.

[0059] On the other hand, as shown in Figures 7 and 8, the body-attaching unit 20 has adhesive tape 560 and release paper 561 attached to its body-contacting surface, and the release paper 561 of the adhesive tape 560 is formed to be separated and removed from the adhesive tape 560 together with the protective cap 200 during the process of separating the protective cap 200 from the applicator 10.

[0060] At this time, the release paper 561 can adhere to the upper surface of the inner support portion 203 of the protective cap 200 and can also adhere to the inner support portion 203 of the protective cap 200 through a separate adhesive member 562. That is, as shown in Figure 7, with respect to the release paper 561, a separate adhesive member 562 is adhered to one side, and such an adhesive member 562 is positioned between the upper surface of the inner support portion 203 of the protective cap 200 and the release paper 561, with its lower surface adhered to the upper surface of the inner support portion 203. The adhesive force of the adhesive member 562 is formed to be even greater than the adhesive force between the release paper 561 and the adhesive tape 560. Therefore, when the protective cap 200 is separated from the applicator 10, the release paper 561 adhered to the inner support portion 203 of the protective cap 200 through the adhesive member 562 is separated and removed from the adhesive tape 560.

[0061] At this time, two cut lines (not shown) with a separation distance equal to the width of the adhesive member 562 can be formed parallel to each other in a portion of the release paper 561. As a result, in the process of separating the protective cap 200 as shown in Figure 8, the release paper 561, along with the adhesive member 562, is separated from the adhesive tape 560 along the cut lines first. Thereafter, as the separation process of the protective cap 200 continues, that is, as the protective cap 200 moves downward relative to the direction shown in Figure 8, the portion of the release paper 561 other than the cut lines is pulled and separated from the adhesive tape 560. Through this release paper separation and removal process, the separation and removal of the release paper 561 can be carried out more smoothly and stably.

[0062] The main case 100 is fitted with a pressurizing button 110 to be operated by the user, and a shooting plate 150 that moves in response to the pressurizing operation of the pressurizing button 110 is movably connected inside the main case 100.

[0063] The plunger body 300 engages with the shooting plate 150 in the first position, fixing them together. When the shooting plate 150 moves, the engagement is released, and the plunger body moves to the second position due to the elastic force of the plunger elastic spring (S1).

[0064] The main case 100 can be separated into an outer case 101 on which a pressure button 110 is attached to one side, and an inner case 102 which is coupled inside the outer case 101 and formed to guide the linear movement path of the plunger body 300, and the shooting plate 150 can be fixedly supported and moved by the inner case 102.

[0065] The pressure button 110 is coupled to the external case 101 so as to be pressurizable. As shown in Figure 9, a button guide groove 1011 is formed in the external case 101 so as to be pressurizable when coupled to the pressure button 110. The pressure button 110 is configured to be pressurizable by rotating around a hinge shaft 112 formed on its upper end, and a pressure load 111 is formed on its lower end so as to be able to pressurize the shooting plate 150. A separate fixing hook 113 is formed on one side to prevent the pressure button 110 from separating or detaching.

[0066] Such a pressurizing button 110 is installed in a way that allows switching between a safety mode in which pressurized movement is blocked by pressurizing operation and a pressurized standby mode in which pressurized movement is possible by pressurizing operation.

[0067] The pressurizing button 110 can be configured to slide along the outer surface of the main case 100 for a certain distance in the safety mode state to convert to the pressurizing standby mode state. A locking projection 1012 can be formed on the main case 100 where the pressurizing button 110 is mounted. In the safety mode state, the pressurizing button 110 engages with the locking projection 1012, preventing pressurizing movement. By sliding to the pressurizing standby mode state in the safety mode state, the engagement with the locking projection 1012 is released, allowing pressurizing movement to become possible.

[0068] In other words, as shown in Figure 10, when the pressure button 110 is in safety mode, it engages with the locking projection 1012 of the external case 101, making pressurization impossible. However, as shown in Figure 11, when the pressure button 110 moves upward in pressurization standby mode, it disengages from the locking projection 1012 of the external case 101, enabling pressurization.

[0069] Such a pressurizing button 110 can be configured to be fixed in place so that, once it slides from the safety mode state to the pressurizing standby mode state, it does not return to the safety mode state.

[0070] For this purpose, a fixing projection 114 is formed on one side of the pressure button 110, and an elastically deformable cut deformable portion 1013 is formed on the bottom surface of the button guide groove 1011 of the outer case 101 in a form in which a portion is cut open. The cut deformable portion 1013 has a receiving groove 1014 into which the fixing projection 114 can be inserted and accommodated when the pressure button 110 is in the safety mode, and the end surface is formed to engage with the fixing projection 114 when the pressure button 110 has finished moving to the pressurization standby mode, thereby restraining the return movement of the pressure button 110.

[0071] This structure allows the user to perform pressurization only when the pressurization button 110 is slid into the pressurization standby mode, thus preventing accidental pressurization and ensuring safe use. In particular, by preventing the device from returning to safety mode once it has been converted from safety mode to pressurization standby mode, careful operation by the user is encouraged, and a stable operating state is maintained.

[0072] When the pressurizing button 110 is switched to the pressurizing standby mode and pressurized as shown in Figure 12, the pressurizing load 111 of the pressurizing button 110 pressurizes and moves the shooting plate 150.

[0073] The shooting plate 150 is securely supported on the inner case 102 and is connected so as to be slidable by the pressurization operation of the pressurization button 110. The plunger body 300 engages with the shooting plate 150 in the first position, and when the shooting plate 150 moves, it disengages from the shooting plate 150 and moves to the second position by the elastic force of the plunger elastic spring (S1).

[0074] As shown in Figures 12 and 13, the plunger body 300 has an engagement hook 310 that engages with the shooting plate 150, and a locking projection 153 is formed on one side of the shooting plate 150 that can engage and connect with the engagement hook 310 of the plunger body 300, and the locking projection 153 is formed so that the engagement state with the engagement hook 310 is released when the shooting plate 150 slides.

[0075] A guide rail 162 is formed protruding from the inner case 102 to guide the sliding path of the shooting plate 150, and a guide slot 151 is formed in the shooting plate 150 to guide the insertion of the guide rail 162. In addition, an elastic member 163 is attached to the inner case 102 to elastically support the shooting plate 150 in the direction opposite to the sliding direction caused by the operation of the pressure button 110. Therefore, since the shooting plate 150 is elastically supported toward the pressure button 110 by the elastic force of the elastic member 163, the engagement state between the plunger body 300 and the engagement hook 310 is stably maintained as long as the pressure button 110 is not pressed.

[0076] With this structure, when the user presses the pressure button 110, the shooting plate 150 slides, which releases the engagement between the plunger body 300 and the shooting plate 150. The plunger body 300 then moves from the first position to the second position for external discharge by the elastic force of the plunger elastic spring (S1), as shown in Figures 15 and 16.

[0077] A stopper projection 320 can be formed on the plunger body 300 to limit its range of movement to the second position, and the stopper projection 320 can restrict the movement of the plunger body 300 by engaging with one side of the inner case 102 when the plunger body 300 moves to the second position. That is, the plunger body 300 moves up to the second position by the stopper projection 320 and is not discharged from the main case 100 beyond that range. At this time, a stopper fixing part 1021 can be formed on the inner case 102 so as to engage with the stopper projection 320 when the plunger body 300 has moved to the second position and restrain the movement of the stopper projection 320.

[0078] Furthermore, a sensor housing portion 301 is formed at one end of the plunger body 300 so as to accommodate the body attachment unit 20. The body attachment unit 20 is inserted into the sensor housing portion 301 and moves linearly from a first position to a second position together with the plunger body 300. As the plunger body 300 and the body attachment unit 20 move linearly to the second position, the sensor probe 521 and needle portion 550 of the body attachment unit 20 are inserted into the body.

[0079] At this time, a sensor fixing hook 330 is attached to the edge of the sensor housing 301 so as to interlock and connect with the body attachment unit 20 inserted into the sensor housing 301, thereby securing and fixing the body attachment unit 20. Interlocking connection grooves 5112 are formed on both ends of the body attachment unit 20 so as to interlock with the sensor fixing hook 330 when the body attachment unit 20 is inserted into the sensor housing 301.

[0080] The sensor fixing hook 330 is elastically rotatable around the rotation axis 331. When the plunger body 300 is in the first position, the sensor fixing hook 330 is elastically supported so as to be pressed inward to engage with the engagement groove 5112 of the body attachment unit 20, as shown in Figure 15. When the plunger body 300 is in the second position, the sensor fixing hook 330 is configured to disengage from the engagement groove 5112 of the body attachment unit 20 during the process of separating the applicator 10 from the body attachment unit 20, as shown in Figure 16. The process of the sensor fixing hook 330 disengaging from the body attachment unit 20 can be performed by the rotation axis 331 twisting and elastically rotating.

[0081] Although not shown in the diagram, a hook guide portion (not shown) can also be formed on the inner wall surface of the inner case 102, having a cross-sectional shape that pressurizes the sensor fixing hook 330 inward so that it engages with the body attachment unit 20, and releases the pressure on the sensor fixing hook 330 when the plunger body 300 moves to the second position. That is, the hook guide portion can be formed on the inner wall surface of the inner case 102 in a form having a protruding surface and a concave surface, the protruding surface is formed to pressurize the sensor fixing hook 330 and the concave surface is formed to release the pressure on the sensor fixing hook 330, and the concave surface is formed to release the pressure on the sensor fixing hook 330 when the sensor fixing hook 330 has moved to the second position together with the plunger body 300.

[0082] On the other hand, in the present invention, the body attachment unit 20 is manufactured with the applicator 10 inserted, so as described above, it is configured to prevent the reuse of another body attachment unit 20 by inserting it into the applicator 10.

[0083] For this purpose, the main case 100 is equipped with a return prevention means to prevent the plunger body 300 from returning to the first position after it has moved to the second position.

[0084] The return prevention means can be configured as shown in Figures 17 to 19, and include an engagement body 340 formed on one side of the plunger body 300, and a return prevention hook 161 formed on the inner case 102 so as to engage and connect with the engagement body 340 of the plunger body 300 when the plunger body 300 has completed downward movement from the first position to the second position, thereby preventing the plunger body 300 from returning to its original position.

[0085] The return prevention hook 161 is configured to engage with the engagement body 340 by an elastic restoring force acting on it during the engagement process. More specifically, the return prevention hook 161 can be configured to include a rotating body 1611 that is elastically rotatably coupled to one side of the inner case 102 around a rotating shaft 1613, and a hook body 1612 that protrudes from the inner surface of the rotating body 1611 so as to be inclined downward and inward. In this case, the rotating shaft 1613 is formed to elastically support the rotating body 1611 in a direction in which the hook body 1612 protrudes inward due to the elastic force acting on it due to the material properties of the elastic material.

[0086] The return prevention hook 161 prevents the plunger body 300 from returning to the first position once it has completed moving from the first position to the second position, thereby also preventing the user from arbitrarily inserting and using other body attachment units 20.

[0087] If we carefully examine the operation of the return prevention hook 161, as shown in Figure 17, when the plunger body 300 is in the first position, and the pressurizing button 110 is operated to move it to the second position, as shown in Figure 18, the hook body 1612 is pressurized by the engagement body 340 of the plunger body 300 during the process of moving to the second position, causing the return prevention hook 161 to elastically rotate clockwise (outward) around the rotation axis 1613. Subsequently, once the plunger body 300 has completed moving to the second position as shown in Figure 19, the pressurized state of the hook body 1612 by the engagement body 340 is released, and the return prevention hook 161 returns to its original position and elastically rotates counterclockwise (inward) around the rotation axis 1613. As the return prevention hook 161 elastically returns to its original position through rotation, the lower end of the return prevention hook 161 engages with the upper end of the engagement body 340 of the plunger body 300, thereby preventing the plunger body 300 from returning to its first position due to the engagement between the return prevention hook 161 and the engagement body 340.

[0088] On the other hand, the applicator 10 is configured such that when the body attachment unit 20 completes its external discharge movement from a first position to a second position, the needle portion 550 of the body attachment unit 20 is pulled out and removed from the body. For this purpose, the applicator 10 may be equipped with a needle pull-out means (N) that moves the plunger body 300 upward and pulls out and removes the needle portion 550 from the body when the plunger body 300 completes its movement from a first position to a second position.

[0089] The needle pull-out mechanism (N) may include a needle pull-out body 400 that is coupled to the needle head 551 of the needle section 550 and engages with the plunger body 300, and moves linearly along the inner case 102 from a first position to a second position together with the plunger body 300, and a needle pull-out elastic spring (S2) that applies an elastic force to the needle pull-out body 400 in the direction that causes the needle pull-out body 400 to move upward toward the first position.

[0090] The needle pull-out body 400 engages with and connects to the plunger body 300. For this purpose, the needle pull-out body 400 has a separate elastic hook 410 that is elastically deformable, and the elastic hook 410 is elastically deflected in the direction that it engages with and connects to the hook engagement portion 350 of the plunger body 300. Therefore, if the plunger body 300 moves linearly from the first position to the second position by operating the pressure button 110, the needle pull-out body 400 also moves linearly to the second position together with the plunger body 300.

[0091] At this time, the inner case 102 is formed with a needle pull-out pressurizing section 130 that pressurizes the elastic hook 410 inward so that the elastic hook 410 is released from the hook engagement section 350 of the plunger body 300 when the needle pull-out body 400 moves to the second position.

[0092] With this structure, when the pressure button 110 is pressed, the needle pull-out body 400 moves linearly from the first position to the second position together with the plunger body 300, as shown in Figure 19. At the same time, the elastic hook 410 of the needle pull-out body 400 is pressed by the needle pull-out pressure section 130 of the inner case 102, and the engagement with the hook engagement section 350 is released. As a result, the needle pull-out body 400 moves upward toward the first position due to the elastic force of the needle pull-out elastic spring (S2), as shown in Figure 20.

[0093] At this time, the needle pull-out body 400 is connected to the needle head 551 of the needle section 550 through the needle head coupling portion 420 at one end, so as the needle pull-out body 400 moves upward to return to its original position, the needle section 550 moves along with it and is pulled out and removed from the body. The needle head coupling portion 420 is formed at the lower end of the needle pull-out body 400 in such a way that it engages with and connects to a coupling groove 552 formed in the needle head 551.

[0094] On the other hand, the plunger body 300 moves to a second position by the elastic force of the plunger elastic spring (S1), thereby inserting the sensor probe 521 and needle portion 550 of the body attachment unit 20 into the body. However, insertion resistance may occur during the insertion of the needle portion 550 into the body, causing the needle portion 550 to retract slightly in the opposite direction to the body insertion direction due to the reaction force. In this case, the sensor probe 521 may not be inserted into the body to the correct depth, so it is desirable to prevent the retraction of the needle portion 550. For this reason, a needle support block can be attached to the needle extraction body 400 to support the upper end of the needle portion 550 downward so that the needle portion 550 does not move relative to the needle extraction body 400.

[0095] Next, we will examine in detail the usage status of the sensor applicator assembly described above, focusing on Figures 21 to 25.

[0096] Figures 21 to 25 are diagrams illustrating the usage state of a continuous blood glucose monitoring device according to one embodiment of the present invention, step by step according to the operating procedure.

[0097] First, the protective cap 200 of the applicator 10 is separated as shown in Figure 21. During the process of separating the protective cap 200, the release paper 561 of the adhesive tape 560 of the body attachment unit 20 is separated from the protective cap 200 and removed from the adhesive tape 560. Subsequently, the sensor applicator assembly is positioned on the body to which the body attachment unit 20 will be attached. In this state, the pressure button 110 is switched to the safety mode and then to the pressurization standby mode, and the pressure button 110 is pressed to apply pressure.

[0098] When the pressure button 110 is pressed, the shooting plate 150 moves and the engagement with the plunger body 300 is released. As shown in Figures 22 and 23, the plunger body 300 moves downward in the direction of external discharge by the plunger elastic spring (S1), and in this process, the needle portion 550 and sensor probe 521 of the body attachment unit 20 are inserted into the body (E). Of course, at this time, the body attachment unit 20 is attached to the surface of the body (E) by the adhesive tape 560 on its bottom. Once the plunger body 300 moves in the direction of external discharge, as shown in Figure 23, the plunger body 300 is engaged by the return prevention hook 161 of the inner case 102 and cannot move upward again. Therefore, the applicator 10 cannot be reused after being used once.

[0099] On the other hand, in one embodiment of the present invention, when the plunger body 300 is moved to the second position which is the outward discharge direction, the lower end surfaces of the plunger body 300 and the body attachment unit 20 coupled to the plunger body 300 are formed to be at the same height as the lower end surface of the main case 100, as shown in Figure 22. However, as shown in the enlarged view of Figure 22, the lower end surface of the plunger body 300 can also be formed to protrude further downward by a distance of X from the lower end surface of the main case 100, thereby causing the lower end surface of the body attachment unit 20 coupled to the plunger body 300 to also protrude further downward by a distance of X from the lower end surface of the main case 100.

[0100] In this configuration, when the plunger body 300 moves elastically, the plunger body 300 is configured to protrude further from the opening of the main case 100, which allows the body attachment unit 20 coupled to the plunger body 300 to adhere more strongly to the body surface. In particular, if the user secretly lifts or moves the main case 100 away from the body surface due to fear or other reasons while operating the applicator, the plunger body 300 will operate to protrude further from the opening of the main case 100, so that the body attachment unit 20 can be stably pressurized and in contact with the body surface.

[0101] When the plunger body 300 moves downward, the sensor fixing hook 330 of the sensor housing 301 may release its engagement with the body attachment unit 20, as shown in Figure 23. Also, the elastic hook 410 of the needle pull-out body 400 is pressed inward by the needle pull-out pressurizing section 130 of the inner case 102, releasing its engagement with the plunger body 300.

[0102] Therefore, when the plunger body 300 moves downward, the needle pull-out body 400 simultaneously moves upward again due to the needle pull-out elastic spring (S2), as shown in Figure 24. At this time, the needle section 550 moves upward together with the needle pull-out body 400, and the needle section 550 is pulled out and removed from the body (E).

[0103] In this state, as mentioned above, the engagement between the sensor fixing hook 330 and the body attachment unit 20 can be released, so the applicator 10 can be separated and removed upwards as shown in Figure 25. Once the applicator 10 is separated and removed in this way, only the body attachment unit 20 remains attached to the body (E).

[0104] Thereafter, the pressurization operation module 570 of the body-attached unit 20 can be operated to activate the sensor member 520 and wireless communication chip 540 of the body-attached unit 20, thereby transmitting the blood glucose measurement results from the body-attached unit 20 to a separate external terminal. In this invention, since the body-attached unit 20 is equipped with both the sensor member 520 and the wireless communication chip 540, additional work such as connecting a separate transmitter is unnecessary.

[0105] Next, let's take a closer look at the body attachment unit 20 according to one embodiment of the present invention.

[0106] Figure 26 is a schematic perspective view showing the external shape of a body-attachment unit attached to a body according to one embodiment of the present invention; Figure 27 is a schematic exploded perspective view showing the configuration of a body-attachment unit according to one embodiment of the present invention; Figure 28 is a cross-sectional view taken along the "CC" line in Figure 26; Figure 29 is a cross-sectional view taken along the "DD" line in Figure 26; and Figure 30 is a schematic diagram showing the operating state of a pressurized operating module according to one embodiment of the present invention.

[0107] A body-attachment unit 20 according to one embodiment of the present invention comprises a housing 510 to which adhesive tape 560 is attached so that its bottom surface adheres to the skin, a sensor member 520 positioned inside the housing 510 such that one end protrudes outward from the bottom surface of the housing 510 and the other end is inserted into the body when the housing 510 adheres to the skin, and a PCB substrate 530 positioned inside the housing 510.

[0108] The sensor member 520 is formed with one end to be inserted into the body and the other end to contact the PCB substrate 530. The other end has a sensor body portion 522 that can contact the electrical contacts of the PCB substrate 530, and the one end has a sensor probe portion 521 that is bent from one side of the sensor body portion 522 and extends outward from the housing 510 so that it can be inserted into the body. The sensor body portion 522 is formed in a form that has a relatively large surface area, and the sensor probe portion 521 is formed in a form that is relatively narrow and long.

[0109] The housing 510 can be formed by separating it into an upper housing 512 and a lower housing 511 so that an internal housing space is formed. Inside the housing 510, a sensor support portion 5121 is formed to support the sensor body portion 522 so that it is isolated from the electrical contacts 531 of the PCB substrate 530 for a certain distance. A sensor guide portion (not shown) is also formed which can support and guide a portion of the sensor probe portion 521. In addition, a substrate support portion 5113 can be formed inside the housing 510 to fix and support the PCB substrate 530 in a certain position.

[0110] An electrical contact 531 is formed on the PCB substrate 530 so as to be electrically connected to the sensor member 520, and a wireless communication chip 540 is mounted on it to send the blood glucose measurement results measured through the sensor member 520 to an external terminal. In one embodiment of the present invention, by having the wireless communication chip 540 inside the body attachment unit 20 in this way, communication with an external terminal can be easily performed without the need for a separate transmitter connection.

[0111] Furthermore, a battery 535 is installed inside the housing 510 to supply power to the PCB board 530. However, the battery 535 is not mounted on one side of the PCB board 530, but is placed in a region independent of the PCB board 530. That is, the PCB board 530 and the battery 535 are placed independently of each other, with no overlapping area on the bottom surface of the housing 510. By placing the PCB board 530 and the battery 535 in independent regions in this way, the thickness of the body attachment unit 20 can be reduced, and it can be made smaller. At this time, a separate contact terminal 532 can be formed on the PCB board 530 to extend toward the battery 535 so as to be electrically connected to the battery 535.

[0112] In one embodiment of the present invention, the body attachment unit 20 is configured such that the other end of the sensor member 520, i.e., the sensor body portion 522, contacts an electrical contact 531 on the PCB substrate 530 by user operation, and the body attachment unit 20 is activated by such electrical contact. In other words, power is supplied by the electrical connection between the sensor member 520 and the PCB substrate 530 by user operation, and the sensor member 520 and the wireless communication chip 540, etc., are activated.

[0113] In order to bring the electrical contact 531 between the other end of the sensor member 520 and the PCB substrate 530 into contact by user operation, the housing 510 may be equipped with a separate pressurized operating module 570 that is operated by user operation.

[0114] The pressurized operating module 570 may include a movable pressurized body 571 that is movably coupled to the housing 510 and moves in the pressurized direction by the pressure applied by the user, and the movement of the movable pressurized body 571 may cause at least a portion of the other end of the sensor member 520 to be pressurized and deformed by the movable pressurized body 571 to contact the electrical contacts 531 of the PCB substrate 530.

[0115] Furthermore, the pressurized operating module 570 may further include a button cover 572 made of a flexible material that is coupled to the housing 510 so as to be externally exposed, surrounding the external space of the movable pressurized body 571, and the coupling portion between the button cover 572 and the housing 510 may be configured to be sealed.

[0116] In this case, the sealing method for the joint between the button cover 572 and the housing 510 can be configured using double-sided tape 580. For example, the other end of the sensor member 520, i.e., one surface of the sensor body portion 522, can be sealed with double-sided tape 580 along its edge, and the inner surface of the button cover 572 can be sealed with the striking surface of the double-sided tape 580 along its edge, thereby sealing the edge of the button cover 572. In this case, the striking surface of the sensor body portion 522 can also be sealed with double-sided tape 580 along its edge, and through this, the edge of the sensor body portion 522 can be bonded and fixed to the sensor support portion 5121 using the double-sided tape 580.

[0117] With the edges of the sensor body 522 bonded to the sensor support 5121 via the double-sided tape 580, as shown in Figure 30, the central region of the sensor body 522 can be pressed and deformed by the movable pressurizing body 571 to make contact with the electrical contacts 531 of the PCB substrate 530. The movable pressurizing body 571 moves in the direction of pressure, but since the button cover 572 is made of a flexible material and its edges are bonded to the housing 510 by the double-sided tape 580, only the central region is deformed in the direction of pressure, and the edges remain bonded and fixed, maintaining a sealed state.

[0118] On the other hand, after the sensor body 522 makes contact with the electrical contact 531 of the PCB substrate 530 by user operation, it is desirable that the contact state be stably maintained for stable blood glucose measurement. For this reason, the movable pressurizing body 571 can be formed to be fixed in a position when it has moved in the pressurizing direction by the pressure applied by the user.

[0119] To fix the position of the movable pressurizing body 571, as shown in Figure 31, a protruding guide portion 5711 is formed on the movable pressurizing body 571 that protrudes along the direction of movement of the movable pressurizing body 571, and a locking hook 5712 can be formed on the outer circumferential surface of the protruding guide portion 5711. In addition, an interlocking projection 5124 can be formed on the housing 510 so that the locking hook 5712 of the protruding guide portion 5711 can engage and connect when the movable pressurizing body 571 is moving in the pressurizing direction. The movable pressurizing body 571 can be configured so that its position is fixed by the locking hook 5712 engaging and connecting with the interlocking projection 5124, as shown in Figure 30.

[0120] In this case, the interlocking projection 5124 can be formed on the sensor support portion 5121 of the housing 510. As shown in Figure 31, at least two guide fixing portions 5123 are formed on the sensor support portion 5121 of the housing 510 so as to be spaced apart along the circumferential direction, surrounding the protruding guide portion 5711 of the movable pressurizing body 571, and the interlocking projection 5124 can be formed on each of the guide fixing portions 5123. Furthermore, each of the guide fixing portions 5123 can be arranged in a manner in which it is elastically supported by an elastically deformable elastic support portion 5125.

[0121] Therefore, as the movable pressurizing body 571 moves in the pressurizing direction, the guide fixing part 5123 elastically deforms to facilitate the movement of the movable pressurizing body 571. Once the movement of the movable pressurizing body 571 is complete, the guide fixing part 5123 elastically returns to its original position, causing the locking hook 5712 to engage and connect with the interlocking projection 5124. The guide fixing part 5123 is then elastically supported by the elastic support part 5125, thus stably maintaining the interlocked connection between the locking hook 5712 and the interlocking projection 5124.

[0122] On the other hand, as described above, the sensor member 520 is composed of a sensor body portion 522 and a sensor probe portion 521, and the sensor body portion 522 has a pressure deformation portion 523 that deforms due to the pressure movement of the movable pressure body 571 and comes into contact with the electrical contacts 531 of the PCB substrate 530.

[0123] The pressurized deformation portion 523 includes a first incision region 5231 in which an incision is made along a first incision line 5232 formed in the central region of the sensor body portion 522, as shown in Figure 32, and can be formed so that the first incision region 5231 is pressurized and deformed by the movable pressurizing body 571.

[0124] Furthermore, the pressurized deformation portion 523 may further include a second incision region 5233 formed in the central region of the sensor body portion 522 along a second incision line 5234 formed in the outer region of the first incision line 5232, so that the first incision region 5231 and the second incision region 5233 are pressurized and deformed by the movable pressurized body 571.

[0125] At this time, the first incision line 5232 is formed in a closed loop with a portion of it open, and the second incision line 5234 is formed in a closed loop that surrounds the open portion of the first incision line 5232 from the outside, and has an open portion at a position opposite to the open portion of the first incision line 5232.

[0126] When the movable pressurizing body 571 is subjected to pressurizing operation using this structure, the first incision region 5231 of the pressurizing deformation portion 523 is elastically deformed downward, as shown in Figures 33(a) and (b). The second incision region 5233 formed on the outer region of the first incision region 5231 is then sequentially elastically deformed downward. As a result, the first incision region 5231, which is in direct contact with the electrical contacts 531 of the PCB substrate 530, comes into contact with the electrical contacts 531 of the PCB substrate 530 in a relatively horizontal state. This allows the contact state of the sensor body portion 522 with respect to the electrical contacts 531 to be maintained more stably.

[0127] On the other hand, multiple electrical contacts 531 that make electrical contact with the sensor body portion 522 are formed on the PCB substrate 530 in a manner that protrudes toward the sensor body portion 522, but at least one of the multiple electrical contacts 531 can be formed with a protrusion height greater than the rest.

[0128] For example, if two electrical contacts 531 are formed on the PCB substrate 530 as shown in Figure 34, the protrusion height of one electrical contact 531 is formed to be higher than the protrusion height of the other electrical contact 531, thereby forming the separation distances d1 and d2 from the sensor body portion 522 to be different.

[0129] This arrangement prevents the sensor body 522 from coming into contact with the electrical contact 531 without any pressurization by the user, due to manufacturing and assembly tolerances or other reasons.

[0130] Looking at it in more detail, in one embodiment of the present invention, the sensor body portion 522 of the sensor member 520 and the electrical contact 531 of the PCB substrate 530 are positioned so as to be separated from each other inside the housing 510, and are configured to make contact with each other when pressed by the user. However, since the housing 510 is formed in a very thin form, it is very difficult to stably maintain the separated state between the sensor body portion 522 and the electrical contact 531 inside it. In particular, due to tolerances that occur during the manufacturing and assembly process, the sensor body portion 522 and the electrical contact 531 may be manufactured and distributed in a state of mutual contact before the user makes a pressurizing operation.

[0131] As mentioned above, if the protrusion height of at least one of the multiple electrical contacts 531 is made higher than that of the remaining electrical contacts 531, even if the sensor body 522 and the electrical contacts 531 come into contact with each other due to manufacturing and assembly tolerances, only the highest protruding electrical contact 531 will come into contact with the sensor body 522, while the remaining electrical contacts 531 will remain separated from the sensor body 522. This is because the highest protruding electrical contact 531 performs the function of supporting the sensor body 522 in an upward direction. At this time, the multiple electrical contacts 531 can be formed to elastically protrude from the PCB substrate 530 in an elastically deformable form, and such elastic force can smoothly perform the support and contact functions with respect to the sensor body 522.

[0132] Even if the sensor body 522 and the electrical contacts 531 come into contact, if only one of the electrical contacts 531 makes contact, the body attachment unit 20 will not start operating. In other words, the sensor component 520 and the wireless communication chip 540 will not start operating, and power supply through the battery 535 will not begin.

[0133] Such an activation prevention function can be achieved through a simple method, such as configuring the pattern circuit of the PCB board 530 so that activation is initiated only when all of the multiple electrical contacts 531 are in contact with the sensor body 522.

[0134] If multiple electrical contacts 531 are formed with different protrusion heights, the pressurizing operating module 570 must be formed such that the travel distance of the movable pressurizing body 571 is greater than or equal to the separation distance between the electrical contact 531 with the lowest protrusion height among the multiple electrical contacts 531 and the sensor body portion 522.

[0135] The above describes the configuration of the pressurized operating module 570, which operates by pressurizing the contact structure between the sensor body 522 and the electrical contact 531 via user operation. However, it can be configured using various methods other than pressurization, and some exemplary configurations will be examined in detail below.

[0136] Figures 35 to 37 are conceptual diagrams illustrating various configurations of a contact coupling module according to one embodiment of the present invention.

[0137] Figures 35 to 37 show a contact coupling module 590 that is operated by the user to bring the sensor body 522 and the electrical contacts 531 of the PCB substrate 530 into contact. Such a contact coupling module 590 can be configured to operate in a manner that it is positioned to interrupt mutual contact between the sensor body 522 and the electrical contacts 531 of the PCB substrate 530, and then moved by the user to interrupt and release mutual contact.

[0138] More specifically, the electrical contacts 531 of the PCB substrate 530 are formed to elastically protrude in a direction that contacts the sensor body portion 522, and the contact coupling module 590 operates to interrupt and release the mutual contact between the electrical contacts 531 of the sensor body portion 522 and the PCB substrate 530, thereby configuring the electrical contacts 531 of the PCB substrate 530 to elastically move by elastic force and contact the other end of the sensor member 520.

[0139] In this case, the contact coupling module 590 may be configured to include a movable plate 591, which is positioned inside the housing between the sensor body 522 and the electrical contacts 531 of the PCB substrate 530, as shown in Figure 35, and is mounted so as to be movable by user operation.

[0140] As shown in Figure 35(a), in the assembled state with the movable plate 591 inserted into the housing 510, it is positioned between the sensor body 522 and the electrical contact 531, blocking mutual contact between the sensor body 522 and the electrical contact 531. As shown in Figure 35(b), if the user moves the movable plate 591 in the direction of pulling it out of the housing 510 and removing it, the electrical contact 531 moves upward due to elastic force and comes into contact with the sensor body 522.

[0141] On the other hand, as shown in Figure 36, the movable plate 591 is mounted so as to be movable from a first position to a second position by the user's operation, and a through hole 593 can be formed on one side of the movable plate 591 so as to press the electrical contact 531 toward the PCB substrate 530 at the first position and release the pressurized state of the electrical contact 531 at the second position.

[0142] Therefore, as shown in Figure 36(a), when the movable plate 591 is in the first position inside the housing 510, the movable plate 591 prevents mutual contact between the sensor body 522 and the electrical contact 531. As shown in Figure 36(b), when the movable plate 591 moves to the second position inside the housing 510, the through hole 593 of the movable plate 591 is positioned between the electrical contact 531 and the sensor body 522, so the electrical contact 531 elastically moves through the through hole 593 and comes into contact with the sensor body 522.

[0143] At this time, a stopper portion 592 can be formed on the movable plate 591 to limit the range of movement of the movable plate 591 from the first position to the second position.

[0144] On the other hand, the movable plate 591 can be configured to be fixed in the second position and unable to move back to the first position.

[0145] For example, a locking hook 594 is formed at one end of the movable plate 591, and a meshing projection 595 is formed inside the housing 510 that can engage and connect with the locking hook 594 when the movable plate 591 is moved to the second position. The movable plate 591 can be fixed in the second position by the locking hook 594 engaging and connecting with the meshing projection 595.

[0146] Furthermore, as shown in Figure 37, the system can also be configured in which a contact connecting member 596 made of a conductive material is separately attached to the movable plate 591. This can be configured in which the contact connecting member 596 is attached to the portion of the movable plate 591 where the through hole 593 is formed, or in which the electrical contacts 531 and the sensor body portion 522 are electrically connected and in contact by the contact connecting member 596 when the movable plate 591 is moving.

[0147] Figures 38 and 39 are schematic diagrams showing the structure of a mode conversion locking member for a pressure button according to one embodiment of the present invention.

[0148] As described above, the pressurizing button 110 according to one embodiment of the present invention is mounted in a way that allows it to switch between a safety mode in which pressurized movement is blocked by pressurizing operation and a pressurized standby mode in which pressurized movement is possible by pressurizing operation.

[0149] At this time, the pressure button 110 is fitted with a locking member 115 that shuts off and releases the mode conversion state of the pressure button 110.

[0150] The locking member 115 is configured to maintain the safe mode state and prevent the pressurizing button 110 from converting to the pressurizing standby mode state, and to release the switch upon user operation.

[0151] The pressure button 110 is mounted in a button guide groove 1011 of the main case 100 so as to be slidable, and the mode is changed between safety mode and pressure standby mode by sliding it. That is, the pressure button 110 is maintained in safety mode within the button guide groove 1011 and can be changed to pressure standby mode by sliding it in response to user operation.

[0152] At this time, the locking member 115 blocks the mode conversion of the pressure button 110 by restraining the sliding movement of the pressure button 110. For example, the locking member 115 can be configured such that one end is coupled to the pressure button 110 and the other end engages with the button guide groove 1011 to restrain the sliding movement of the pressure button 110.

[0153] More specifically, the locking member 115 can be configured to include a locking body 1151, one end of which is coupled to the pressure button 110 so that it can be operated by the user, as shown in Figure 38, and a locking hook 1152 that protrudes from one side of the locking body 1151 and engages with the inner circumferential surface of the button guide groove 1011.

[0154] In this case, the lock body 1151 is rotatably connected to the pressure button 110, and the lock can be configured so that the engagement of the lock hook 1152 with the button guide groove 1011 is released when the user rotates the lock body 1151. The rotatable structure of the lock body 1151 can be constructed using a hinge or the like, but as shown in Figures 38 and 39, it can also be configured to allow the user to easily rotate it using a joint made of a flexible material.

[0155] Furthermore, the lock body 1151 may be formed to be elastically deformable, and the lock hook 1152 may be configured to release its engagement with the button guide groove 1011 by the user rotating the lock body 1151 to elastically deform it. Alternatively, the lock body 1151 may be connected to the pressure button 110 so as to be detachable, and the lock hook 1152 may be configured to release its engagement with the button guide groove 1011 by the user detaching and removing the lock body 1151.

[0156] In this way, by having the mode change occur via a separate locking member 115 during the process of switching the pressurizing button 110 from safety mode to pressurizing standby mode, it is possible to guide the user to pay more attention when operating the mode change, thereby preventing accidental activation of the applicator due to malfunction or tampering.

[0157] Furthermore, the locking member 115 can be formed so that the user can visually identify the operating state of blocking and releasing the mode conversion of the pressure button 110. However, as described above, if the locking body 1151 of the locking member 115 is extended to protrude from one side of the pressure button 110 and operated by rotating it, the user can easily identify the locking member 115 and easily grasp the operating state of the locking member 115, that is, whether the mode conversion is blocked or released, thereby promoting safer use.

[0158] Figures 40 and 41 are schematic diagrams illustrating the structure and operating state of a pressurized operating module according to the present invention and another embodiment.

[0159] As described above, the pressurized operating module 570 consists of a movable pressurized body 571 that moves in response to the pressure applied by the user to pressurize the other end of the sensor member 520, and a button cover 572 made of a flexible material that surrounds the upper surface of the movable pressurized body 571.

[0160] The button cover 572 is made of a flexible material and is connected to the housing 510 in a manner that surrounds the upper surface of the movable pressurizing body 571. Therefore, after the movable pressurizing body 571 has completed its downward movement due to the user's pressurizing operation, the button cover 572 maintains a shape that can be freely deformed due to the properties of the flexible material, as there is no separate support member for the button cover 572. In this case, not only is it aesthetically unpleasing, but it is also difficult for the user to clearly distinguish whether the pressurizing operation module 570 has been pressed or not.

[0161] Another embodiment of the present invention, the pressurized operating module 570, is configured to be fixed in a different state than before operation upon completion of operation by user operation, and is particularly formed so that the state before and after operation can be visually distinguished by the user.

[0162] For this purpose, as shown in Figure 40, an upward-projecting pressure projection 5713 is formed on the upper surface of the movable pressure body 571, and the button cover 572 is mounted so as to be elastically deformed to be projected upward by the pressure projection 5713 in the state prior to the operation of the pressure operating module 570. Thus, an elastic projection 5721 is formed in the center of the button cover 572, which is elastically deformed to be projected upward by the pressure projection 5713 of the movable pressure body 571.

[0163] As shown in Figure 41, when the pressurizing mechanism 570 is activated and the moving pressurizing body 571 moves downward, the tight contact state with the pressurizing protrusion 5713 is released, and the button cover 572 returns to its flattened state. In other words, the elastic protrusion 5721 returns to its flattened state.

[0164] With this structure, the button cover 572 is elastically supported and fixed in place by its own elastic force, with its upper surface forming a flat surface when the movable pressurizing body 571 moves downward due to the operation of the pressurizing operating module 570. Furthermore, before the pressurizing operating module 570 is activated, an elastic protrusion 5721 is formed protruding from the center of the button cover 572, but after the pressurizing operating module 570 is activated, the elastic protrusion 5721 of the button cover 572 is deformed back to a flat state. Thus, the protruding and released states of the elastic protrusion 5721 appear before and after the operation of the pressurizing operating module 570, allowing for easy visual identification of the state before and after operation.

[0165] Figure 42 is a schematic diagram showing the structure of a pressurized operating module according to the present invention and another embodiment.

[0166] As shown in Figure 42, the movable pressurizing body 571 and the button cover 572 of the pressurizing operating module 570 can be formed as a single unit.

[0167] As described above, when the pressurizing module 570 is activated and the pressurizing body 571 moves downward, problems arise such as the button cover 572 deforming freely, and the separate manufacturing of each component leads to difficulties in production and increased costs.

[0168] To solve this problem, the movable pressurizing body 571 and the button cover 572 can be formed as a single unit. In this case, the button cover 572 can be made of a flexible material to improve the ease of assembly for the pressurizing operating module 570, and the movable pressurizing body 571 can be made thicker to have relative rigidity.

[0169] In this case, the movable pressurized body 571 and the button cover 572 can be manufactured as a single unit in one process, and due to the properties of the flexible material, it offers excellent workability and prevents damage to the sensor component 520 and other components due to interference or wear.

[0170] Figure 43 is a schematic perspective view showing the detailed configuration of a sensor member according to the present invention and another embodiment.

[0171] As described above, the sensor member 520 can be configured to include a sensor body portion 522 in which a pressure-deformed portion 523 is formed in the central region so as to contact the electrical contacts of the PCB substrate, and a sensor probe portion 521 which is formed as an extension of the sensor body portion 522 in a bent form and inserted into the body.

[0172] In this case, the pressure-deformed portion 523 is formed in a form in which a portion of the area is cut open, but in another embodiment of the present invention, the sensor member 520 has a bridge portion 524 formed on the cut line of the pressure-deformed portion 523 in a form in which a portion of the area is not cut open.

[0173] More specifically, the pressurized deformation portion 523 can be configured to include a first incision region 5231 in which an incision is made along the first incision line 5232, and a second incision region 5233 in which an incision is made along the second incision line 5234, as described above. The bridge portion 524 can be formed in a portion of the multiple support points of the first incision line 5232 and the second incision line 5234.

[0174] In this way, a bridge portion 524 is formed in the incision line of the pressure-deformed portion 523, which is not incised in some sections. This prevents problems such as the incision area being deformed by its own weight or being deformed due to careless handling during the assembly or manufacturing process.

[0175] In other words, if the pressure-deformable portion 523 is formed in the incision area, the pressure-deformable portion 523 can be easily deformed due to errors such as careless handling by the operator. However, if the pressure-deformable portion 523 is deformed independently of user operation, problems may arise such as the pressure-deformable portion 523 being able to come into contact with electrical contacts even without user operation. In another embodiment of the present invention, by forming a bridge portion 524 in the incision line, the bridge portion 524 supports the pressure-deformable portion 523 and prevents it from being easily deformed, thereby maintaining more accurate and stable operating performance.

[0176] Figure 44 is a perspective view illustrating the configuration of a sensor member with respect to pressure deformation according to one embodiment of the present invention.

[0177] As described above, the sensor body portion 522 of the sensor member 520 has a pressure-deformed portion 523 formed in a shape that is cut along the cut line.

[0178] In this case, the pressurized deformation portion 523 can be configured to include a first incision region 5231 in which an incision is made along the first incision line 5232, and a second incision region 5233 in which an incision is made along the second incision line 5234 formed in the outer region of the first incision line 5232.

[0179] This form is illustrative, and the incision lines can be modified and applied in various ways. For example, the first incision line 5232 and the second incision line 5234 can be formed in a curved shape, as shown in Figure 44(a).

[0180] Furthermore, as shown in Figure 44(b), the first incision line 5232 can be formed in a helical shape, in which case the central region can be pressurized along the helical first incision line 5232 by the movable pressurizing body 571 of the pressurizing operating module 570, and when pressurized by the movable pressurizing body 571, the first incision region 5231 deforms sequentially from the central region to the outer region along the helical first incision line 5232, so that it can stably contact the electrical contacts of the PCB substrate even without a separate second incision line and second incision region.

[0181] Figure 45 is an illustrative drawing showing various modifications of the sensor member according to one embodiment of the present invention, Figure 46 is a cross-sectional view taken along the "EE" line in Figure 45 to illustrate the electrode stacking structure of the sensor member according to one embodiment of the present invention, and Figures 47 and 48 are cross-sectional views taken along the "EE" line in Figure 45 to illustrate the electrode stacking structure of the sensor member according to another embodiment of the present invention.

[0182] The sensor member 520 is formed with one end elongated in one direction so as to be inserted into the body, and the other end is formed to contact the electrical contacts of the PCB substrate.

[0183] The sensor member 520 has a sensor body portion 522 at one end so as to contact an electrical contact, and one end forms a sensor probe portion 521 that extends from one side of the sensor body portion 521 so as to be inserted into the body.

[0184] The form of such a sensor member 520 can be changed in a wide variety of ways, but as shown in Figure 45(a), the sensor body portion 522 can be formed as a flat plate with a relatively large area, or as shown in (b) and (c), it can be formed as a thin and long form that is bent in the middle region, or as an unbent form. This is illustrative, and it can be formed in a variety of other forms as well.

[0185] The sensor probe portion 521 of such a sensor member 520 has multiple electrode layers formed on it so that it can be inserted into the body to measure information about various substances from bodily fluids.

[0186] More specifically, as shown in Figure 46, the device comprises a substrate 5201 with one end elongated in one direction so as to be inserted into the body, a first electrode layer 5202 laminated on the upper surface of at least one end of the substrate 5201, a first insulating layer 5203 laminated to surround the upper surface of the first electrode layer 5202, a second electrode layer 5204 laminated on the upper surface of the first insulating layer 5203, and a second insulating layer 5205 laminated to surround the upper surface of the second electrode layer 5204.

[0187] Looking closely at the process of laminating these electrode layers, as shown in Figure 46(a), the first electrode layer 5202, the first insulating layer 5203, the second electrode layer 5204, and the second insulating layer 5205 are sequentially laminated on the upper surface of the substrate 5201. These electrode layers and insulating layers are formed along the entire length or in part along the length of the sensor probe portion 521, and are formed over the entire width region, which is perpendicular to the length. With the electrode layers and insulating layers laminated in this way, both sides in the width direction are finished by cutting along the cutting lines shown by dotted lines in Figure 46(a). Through this cutting process, both sides in the width direction of the sensor probe portion 521 become smooth, as shown in Figure 46(b).

[0188] However, in the actual manufacturing process, a problem arises where the first electrode layer 5202 and the second electrode layer 5204 come into contact with each other and become electrically connected due to reasons such as being washed out by the cutting blade during the cutting process on both sides in the width direction. In particular, since the electrode layers and insulating layers are formed with extremely fine thicknesses on the micron level, this problem occurs frequently. The first electrode layer 5202 and the second electrode layer 5204 can only perform their normal sensor function if they are perfectly separated by the first insulating layer 5203 between them. However, if the first electrode layer 5202 and the second electrode layer 5204 come into contact during the side cutting process, the sensor function cannot be performed normally and the product is treated as defective.

[0189] In one embodiment of the present invention, in order to prevent such problems, the laminated structure shown in Figure 47 is provided. That is, on one of the two sides of the sensor probe portion 521 in the width direction, either the first electrode layer 5202 or the second electrode layer 5204 is exposed, and the other side is exposed, so that the first electrode layer 5202 and the second electrode layer 5204 are arranged to face each other.

[0190] Looking at the lamination process in detail with an example, as shown in Figure 47(a), the first electrode layer 5202 is laminated so as to be eccentrically to the left side in the width direction of the upper surface of the substrate 5201, and the first insulating layer 5203 is laminated on the substrate 5201 and the first electrode layer 5202 so as to surround the upper surface and side surface of the first electrode layer 5202. The second electrode layer 5204 is laminated on the upper surface of the first insulating layer 5203 so as to be eccentrically to the right side in the width direction of the substrate 5201. The second insulating layer 5205 is laminated on the first insulating layer 5203 and the second electrode layer 5204 so as to surround the upper surface and side surface of the second electrode layer 5204.

[0191] With the electrode layer and insulating layer stacked in this manner, both sides in the width direction are cut along the cutting lines shown by the dotted lines in Figure 47(a) to complete the finishing process. Through this cutting process, both sides of the sensor probe portion 521 in the width direction expose the first electrode layer 5202 on one side and the second electrode layer 5204 on the other side, as shown in Figure 47(b).

[0192] In this case, unlike the laminated structure shown in Figure 46, the laminated structure shown in Figure 47 is constructed such that the first electrode layer 5202 and the second electrode layer 5204 are stacked facing each other. Therefore, even if the first electrode layer 5202 and the second electrode layer 5204 are to flow out by the cutting blade during the cutting process on both sides in the width direction, the first electrode layer 5202 and the second electrode layer 5204 will not come into contact with each other, thus significantly reducing the rate of product defects.

[0193] On the other hand, as shown in Figure 48, a separate third electrode layer 5206 can be formed on the underside of one end of the substrate 5201, and a third insulating layer 5207 can be laminated on the substrate 5201 and the third electrode layer 5206 so as to surround the underside of the third electrode layer 5206. Since the third electrode layer 5206 is laminated on the underside of the substrate 5201, different from the first and second electrode layers 5202 and 5204, the phenomenon of contact with the first and second electrode layers 5202 and 5204 does not occur during the cutting process on both sides. Therefore, it can be freely selected to form it over the entire widthwise region of the underside of the substrate 5201, or to form it only in the central region as shown in Figure 48.

[0194] Of course, if two electrode layers are sequentially stacked on the underside of the substrate 5201, it is desirable to stack them so that they are arranged opposite each other, just like the first electrode layer 5202 and the second electrode layer 5204.

[0195] When two electrode layers are formed on the sensor element, each electrode layer acts as both an operating electrode and a counter electrode. When three electrode layers are formed, each electrode layer can act as both an operating electrode, a counter electrode, and a reference electrode. Furthermore, even more electrode layers can be formed, and each can be used to measure different substances.

[0196] Furthermore, the first electrode layer 5202 and the second electrode layer 5204 are formed over the entire length of the sensor probe portion 521 of the sensor member 520 and can be extended to the sensor body portion 522 so as to contact the electrical contacts of the PCB substrate.

[0197] The above description is merely illustrative of the technical concept of the present invention, and a person with ordinary skill in the art to which the present invention belongs could make various modifications and variations without deviating from the essential characteristics of the present invention. Therefore, the embodiments disclosed herein are for illustrative purposes only, not to limit the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by such embodiments. The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical concepts within an equivalent scope should be interpreted as being included within the scope of the rights of the present invention. [Prior art documents] [Patent Documents]

[0198] [Patent Document 1] Special Publication No. 2020-532326

Claims

1. A body-attached unit that is placed on the body to measure blood glucose, The applicator to which the body attachment unit is connected includes, With the body attachment unit and the applicator assembled, the body attachment unit is connected to the inside of the applicator. The body attachment unit is A sensor component with one end inserted into the body, Includes a wireless communication chip that communicates wirelessly with an external terminal, The body attachment unit is attached to the body by adhesive tape attached to the bottom surface of the body attachment unit. The aforementioned applicator is Main case and Includes a plunger body that is movably coupled inside the main case, The plunger body is released from its coupling and fixing position inside the main case and moves to a second position. The body attachment unit is coupled to one end of the plunger body and moves together with the plunger body from a first position to a second position. With the plunger body moved to the second position, the lower end of the plunger body protrudes downward from the lower end of the main case. Blood sugar measuring device.

2. The blood glucose measuring device according to claim 1, wherein a sensor housing portion is formed at one end of the plunger body so as to accommodate the body attachment unit.

3. The blood glucose measuring device according to claim 2, wherein a sensor fixing hook is formed on the edge of the sensor housing portion, which interlocks and connects with the body attachment unit.

4. The blood glucose measuring device according to claim 3, wherein the sensor fixing hook engages and connects with the body attachment unit when the plunger body is in the first position.

5. The blood glucose measuring device according to claim 3, wherein the body attachment unit is released from the sensor fixing hook when the plunger body is in the second position.

6. The blood glucose measuring device according to claim 3, wherein the body attachment unit has an interlocking coupling groove formed so as to interlock with the sensor fixing hook.

7. The blood glucose measuring device according to claim 1, further comprising a protective cap detachably attached to the applicator so as to prevent the body attachment unit and the adhesive tape from being exposed to the outside of the applicator while the body attachment unit is bonded inside the applicator.

8. The blood glucose measuring device according to claim 1, wherein, with the plunger body in the first position, the lower end of the body attachment unit is positioned above the lower end of the applicator.

9. The blood glucose measuring device according to claim 1, wherein, with the plunger body in the first position, the lower end of the adhesive tape is positioned above the lower end of the applicator.

10. The blood glucose measuring device according to claim 1, wherein the main case includes a return prevention means for preventing the plunger body from returning to the first position after the plunger body has moved to the second position.

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